glamor/glamor_program.h

   1 /*
   2  * Copyright © 2014 Keith Packard
   3  *
   4  * Permission to use, copy, modify, distribute, and sell this software and its
   5  * documentation for any purpose is hereby granted without fee, provided that
   6  * the above copyright notice appear in all copies and that both that copyright
   7  * notice and this permission notice appear in supporting documentation, and
   8  * that the name of the copyright holders not be used in advertising or
   9  * publicity pertaining to distribution of the software without specific,
  10  * written prior permission.  The copyright holders make no representations
  11  * about the suitability of this software for any purpose.  It is provided "as
  12  * is" without express or implied warranty.
  13  *
  14  * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  15  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
  16  * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
  17  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
  18  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
  19  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
  20  * OF THIS SOFTWARE.
  21  */
  22
  23 #ifndef _GLAMOR_PROGRAM_H_
  24 #define _GLAMOR_PROGRAM_H_
  25
  26 typedef enum {
  27     glamor_program_location_none = 0,
  28     glamor_program_location_fg = 1,
  29     glamor_program_location_bg = 2,
  30     glamor_program_location_fillsamp = 4,
  31     glamor_program_location_fillpos = 8,
  32     glamor_program_location_font = 16,
  33     glamor_program_location_bitplane = 32,
  34     glamor_program_location_dash = 64,
  35     glamor_program_location_atlas = 128,
  36 } glamor_program_location;
  37
  38 typedef enum {
  39     glamor_program_flag_none = 0,
  40 } glamor_program_flag;
  41
  42 typedef enum {
  43     glamor_program_alpha_normal,
  44     glamor_program_alpha_ca_first,
  45     glamor_program_alpha_ca_second,
  46     glamor_program_alpha_dual_blend,
  47     glamor_program_alpha_dual_blend_gles2,
  48     glamor_program_alpha_count
  49 } glamor_program_alpha;
  50
  51 typedef struct _glamor_program glamor_program;
  52
  53 typedef Bool (*glamor_use) (DrawablePtr drawable, GCPtr gc, glamor_program *prog, void *arg);
  54
  55 typedef Bool (*glamor_use_render) (CARD8 op, PicturePtr src, PicturePtr dst, glamor_program *prog);
  56
  57 typedef struct {
  58     const char                          *name;
  59     const int                           version;
  60     char                                *vs_extensions;
  61     const char                          *fs_extensions;
  62     const char                          *vs_vars;
  63     const char                          *vs_exec;
  64     const char                          *fs_vars;
  65     const char                          *fs_exec;
  66     const glamor_program_location       locations;
  67     const glamor_program_flag           flags;
  68     const char                          *source_name;
  69     glamor_use                          use;
  70     glamor_use_render                   use_render;
  71 } glamor_facet;
  72
  73 struct _glamor_program {
  74     GLint                       prog;
  75     GLint                       failed;
  76     GLint                       matrix_uniform;
  77     GLint                       fg_uniform;
  78     GLint                       bg_uniform;
  79     GLint                       fill_size_inv_uniform;
  80     GLint                       fill_offset_uniform;
  81     GLint                       font_uniform;
  82     GLint                       bitplane_uniform;
  83     GLint                       bitmul_uniform;
  84     GLint                       dash_uniform;
  85     GLint                       dash_length_uniform;
  86     GLint                       atlas_uniform;
  87     glamor_program_location     locations;
  88     glamor_program_flag         flags;
  89     glamor_use                  prim_use;
  90     glamor_use                  fill_use;
  91     glamor_program_alpha        alpha;
  92     glamor_use_render           prim_use_render;
  93     glamor_use_render           fill_use_render;
  94 };
  95
  96 typedef struct {
  97     glamor_program      progs[4];
  98 } glamor_program_fill;
  99
 100 extern const glamor_facet glamor_fill_solid;
 101
 102 Bool
 103 glamor_build_program(ScreenPtr          screen,
 104                      glamor_program     *prog,
 105                      const glamor_facet *prim,
 106                      const glamor_facet *fill,
 107                      const char         *combine,
 108                      const char         *defines);
 109
 110 Bool
 111 glamor_use_program(DrawablePtr          drawable,
 112                    GCPtr                gc,
 113                    glamor_program       *prog,
 114                    void                 *arg);
 115
 116 glamor_program *
 117 glamor_use_program_fill(DrawablePtr             drawable,
 118                         GCPtr                   gc,
 119                         glamor_program_fill     *program_fill,
 120                         const glamor_facet      *prim);
 121
 122 typedef enum {
 123     glamor_program_source_solid,
 124     glamor_program_source_picture,
 125     glamor_program_source_1x1_picture,
 126     glamor_program_source_count,
 127 } glamor_program_source;
 128
 129 typedef struct {
 130     glamor_program      progs[glamor_program_source_count][glamor_program_alpha_count];
 131 } glamor_program_render;
 132
 133 static inline Bool
 134 glamor_is_component_alpha(PicturePtr mask) {
 135     if (mask && mask->componentAlpha && PICT_FORMAT_RGB(mask->format))
 136         return TRUE;
 137     return FALSE;
 138 }
 139
 140 glamor_program *
 141 glamor_setup_program_render(CARD8                 op,
 142                             PicturePtr            src,
 143                             PicturePtr            mask,
 144                             PicturePtr            dst,
 145                             glamor_program_render *program_render,
 146                             const glamor_facet    *prim,
 147                             const char            *defines);
 148
 149 Bool
 150 glamor_use_program_render(glamor_program        *prog,
 151                           CARD8                 op,
 152                           PicturePtr            src,
 153                           PicturePtr            dst);
 154
 155 #endif /* _GLAMOR_PROGRAM_H_ */